The Carmex Thread Turning Holder Through Coolant — Internal Left Hand — 200 mm OAL — 16IL Insert — 25 Shank is a precision tool designed for reliable internal threading with long-reach capability. Built to work with IL inserts, it combines through-coolant cooling with a secure screw-clamp connection for consistent, high-quality threads.

• Overall length: 200 mm
• Shank size: 25
• Insert compatibility: Designed for 16IL internal left-hand inserts, with compatibility to IR/IL insert families for versatile threading options
• Through-coolant bore: Integrated coolant passage to improve chip evacuation and edge cooling during cutting
• Threading direction: Optimized for internal left-hand threading; supports precise engagement with IL inserts
• Screw-clamp retention: Secure, repeatable insert clamping minimizes tool displacement during machining
• Construction: Robust, precision-engineered holder designed for demanding machining environments

With through-coolant flow and a secure screw-clamp interface, this holder supports steady chip evacuation and consistent heat management, contributing to better thread quality and longer insert life. The rigid 200 mm reach and 25 mm shank provide stable support for long internal threading passes, while compatibility with 16IL inserts ensures precise alignment and repeatability. Ideal for internal threading tasks in automotive components, hydraulic housings, and other assemblies where clean, accurate internal threads are essential.